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The impact of traffic emissions on the environment close to an arterial road often is assessed on the basis of heavy metal pollution of road dust collected directly from or close to the road surface. In our work we propose an assessment of a potential environmental hazard on the basis of an analysis of the content of heavy metals in the road dust trapped on vertical acoustic barriers installed directly...
Chromium contamination in the area of the Radomka river basin in Poland has lead to significant environmental problems. Therefore, chromium redox transformations were investigated in the aquatic environment under conditions as close to natural as possible ± at intermediate pH and in the presence of original bottom sediment and dissolved oxygen. Reduction of Cr(VI) in the Radomka river water occurs...
The influence of selected physicochemical factors on the degradation of five PAHs in river water and distilled water was tested. Even in darkness, in distilled water some losses of PAHs were observed, different for various compounds, from 22% to 41% after 21 days. Aeration with air increased the losses of PAHs. But very high degradation was found when samples were irradiated with light, for some PAHs...
The total content of chromium in natural waters does not generally exceed several mg/l. Thus, it is obvious that various forms of chromium will occur at the levels of tenths or hundredths of mg/l. Their determination requires the application of a sufficiently sensitive method, but an important role to play has its specificity in the case of chemical individuals or selectivity in regard to speciation...
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